Road bike recommendations

hmm its for the missus, she currently rides a charge hob in xs. Roadlite AL frame seems like a perfect match in XS but she needs single speed (tensioner or ENO hub). I am trying to avoid non single speed frameset though. Plug in XS seems like a good idea, I'll order one in Evans to try. Any other options?

Now you have a start point...

Frame size - XS (50)
Seat tube length - 475
Top tube length - 519
Head tube length - 150
Head tube angle - 71°
Seat tube angle - 73.5°
Chainstay length - 410
Wheel base - 969
Stack - 548
Reach - 354.9